An out-of-bounds read and write in NTS client extension field parsing (extens_client_recv) in NTPsec before 1.2.5 allows a remote attacker who can…
An out-of-bounds read and write in NTS client extension field parsing (extens_client_recv) in NTPsec before 1.2.5 allows a remote attacker who can send NTP server-mode replies to an NTS client to corrupt heap memory and crash ntpd, and, combined with the NTS-KE client out-of-bounds read fixed in 1.2.4, to bypass NTS authentication and set the client's time, via an NTS Authenticator and Encrypted Extension Fields field whose nonce length exceeds the field.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- NTPsec
- Product
- NTPsec
- CVSS v3.1
- 7.4 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
- Exploitation
- SSVC none, automatable no, impact partial
- Fix
- available
- Weakness
- CWE-787
- Exposure class
- Operating system
- NVD status
- Awaiting Analysis
Why it ranks 35 (Notable)
- CVSS v3.1 7.4 high
- Product class: operating system
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.